Question

Root 5 minus 2 by root 5 + 2 whole square

Answer 1

Step-by-step explanation:

(√5-2/√5+2)²

{(√5-2)²/(√5)²-(2)²}²

{(5+4-4√5)/(5-4)}²

(9+4√5)²

81 + 80 + 72√5

161 + 72√5

Answer 2

(√5-2/√5+2)²

{(√5-2)²/(√5)²-(2)²}²

{(5+4-4√5)/(5-4)}²

(9+4√5)²

81 + 80 + 72√5

161 + 72√5

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